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In this section you will find detailed information, including national overviews and state and regional level assessments, from the 2000-2002 National Land and Water Resources Audit theme assessments.
Groundwater Management Unit
Groundwater Management Unit: Alexandra
Introduction
The groundwater resource characteristics for the Alexandra groundwater managment unit are presented below. This includes technical detail on aquifer properties and water level change for key monitoring bores.
What is the character of Alexandra's groundwater resource?
Vital Statistics:
| Area | 30 km2 |
|---|---|
| Total Water Allocated | 935 ML/yr |
| Total Water Used | 620 ML/yr |
| Average Salinity | 230 mg/L |
| Sustainable Yield | 5,025 ML/yr |
| Depth to top of aquifer | 10 m |
Unconfined sediments of the floodplain alluvium.
Method used for determining sustainable yield:
The sustainable yield is based primarily on the aquifer recharge estimation (recharge from rainfall) and has been inferred as 5,025 ML/year. Due to the lack of groundwater observation bores in the area, the reliability of this figure is poor.
Assumptions used for allocating development categories:
Use and allocation volumes in this GMU are low, which has placed this GMU in a category 1.
Are groundwater levels changing?
Technical information on the key groundwater bores and monitoring stations is presented below, including hydrographs where available. Link to a discussion on groundwater levels and trends at a State level as it relates to dryland salinity.
There are no bore monitoring stations recorded in this area for this assessment
The following groundwater management units also occur in Lachlan Province:
- Araluen Alluvium and Weathered Granite (NSW)
- Ascot (VIC)
- Bell Valley Alluvium (NSW)
- Belubula River Alluvium (NSW)
- Billabong Creek Alluvium (NSW)
- Bullarook (VIC)
- Bungaree (VIC)
- Cudgegong Valley Alluvium (NSW)
- Glengower (VIC)
- King Lake (VIC)
- Lancefield (VIC)
- Lower Macquarie Alluvium (NSW)
- Mid Murrumbidgee Alluvium (NSW)
- Mid and Upper Murrumbidgee Catchment Fractured (NSW)
- Molong Limestone (NSW)
- Moolort (VIC)
- Mudgee Limestone (NSW)
- Murrumbidgee (ACT)
- Namadgi (ACT)
- Orange Basalt (NSW)
- Queanbeyan and Molonglo (ACT)
- Spring Hill Groundwater Supply Protection Area (VIC)
- Tourello (VIC)
- Unincorporated Area - Lachlan (VIC)
- Unincorporated Area - Lachlan Fold Belt Province (NSW)
- Upper Lachlan Alluvium (NSW)
- Upper Macquarie Alluvium (NSW)
- Wandin Yallock (VIC)
- Young Granite (NSW)
Further information
- Victoria Water Resources Assessment 2000 Report
- Victoria Water Resources Assessment 2000 Technical Report
- For more information about water and other natural resource issues link to www.dse.vic.gov.au .
- Link to data available for download on the Groundwater management units and provinces - ARC/INFO export
- Link to Map maker to make a map using this information.
Key
Links to an another web site
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